If you can't write to HDD, then I recommend checking its settings or when you try to save to HDD, firstly, make sure that the HDD is connected and detected. You can check in Start > Run > devmgmt.msc. If the HDD is detected, proceed to the test phase. Try recording something. If the error is gone, then the HDD might have issues with connection for the times when it's not working. Change the cables for both data and power.
Additionally, use the ArcSoft TotalMedia's help file to learn how to configure the software properly.